antaflos

The problem

In some cases, it is possible that PostgreSQL tables get corrupted. This can happen in case of hardware failures (e.g. hard disk drives with write-back cache enabled, RAID controllers with faulty/worn out battery backup, etc.), as clearly reported in this wiki page. Furthermore, it can happen in case of incorrect setup, as well.

One of the symptoms of such corruptions is the following message:

ERROR: missing chunk number 0 for toast value 123456 in pg_toast_45678

This almost surely indicates that a corrupted chunk is present within a table file. But there is a good way to get rid of it.

antaflos

#!/bin/bash

# The script could use more testing, but it works well for my needs
extract_rar() {
  isRar=$(ls ./*.rar)
  if [ -n "$isRar" ]; then
    # Handle an edge case with some distributors
    isPart01="$(ls ./*rar | grep -E part0*1.rar)"
    if [ -n "$isPart01" ]; then
      isRar=$isPart01

antaflos

#!/bin/bash


# The script could use more tesing, but it works well for my needs
function extract_rar() {
  isRar=$(ls | grep *.rar)
  if [ -n "$isRar" ]; then
    # Handle an edge case with some distributors
    isPart01="$(ls *.rar | egrep -i 'part01.rar|part1.rar')"
    if [ -n "$isPart01" ]; then

antaflos

#!/usr/bin/env ruby
 
require 'erb'
require 'json'
require 'optparse'
require 'ostruct'
 
class ERBContext
  def initialize(hash)
    raise ArgumentError, 'hash must be a Hash object' unless hash.is_a?(::Hash)

antaflos

global
  chroot  /var/lib/haproxy
  crt-base  /etc/pki/tls/certs
  daemon  
  group  haproxy
  log  127.0.0.1 local0
  maxconn  2000
  pidfile  /var/run/haproxy.pid
  stats  socket /var/lib/haproxy/stats
  tune.ssl.default-dh-param  2048

antaflos

input {
        file {

        path => "/root/mult.log"
        start_position => "beginning"
        sincedb_path => "/dev/null"
        codec => multiline{

                 pattern => "^ -%{SPACE}%{TIMESTAMP_ISO8601}"
                 negate => true

antaflos

#!/bin/bash
# Autostart Libvirt VM's created with Foreman
# /usr/share/foreman/config/hooks/host/managed/create/10_autostart_libvirt.sh
# Source: http://www.uberobert.com/autostart-libvirt-vms-in-foreman/

. $(dirname $0)/hook_functions.sh

username='admin'
password='changeme'

antaflos

#!/bin/sh

dn='dc=math,dc=nccu,dc=edu,dc=tw'
username='jim.yeh'
uid='jim.yeh'
gid='student'

cat << EOF > user_example.ldif

dn: cn=$username,ou=users,ou=login,$dn

antaflos

# Bind SSL port with PFS-enabling cipher suite
bind :443 ssl crt path_to_certificate no-tls-tickets ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-RSA-RC4-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES128-SHA:AES256-SHA256:AES256-SHA:RC4-SHA

# Distinguish between secure and insecure requests
acl secure dst_port eq 443

# Mark all cookies as secure if sent over SSL
rsprep ^Set-Cookie:\ (.*) Set-Cookie:\ \1;\ Secure if secure

# Add the HSTS header with a 1 year max-age

antaflos

Test with External Function

When

You want to test a resource definition (class, defined type) that uses a function provided by a third-party module your module depends upon. It's supposed that you're implementing your tests with rspec-puppet.

How